my %Media = {
        img_1 => [
                { name => 'img_1_thumb_1', w => 100, h => 100 },
                { name => 'img_1_thumb_2', w => 50 , h => 50  },
                ],
        img_2 =< [
                { name => 'img_2_thumb_1', w => 100, h => 100 },
        ],
        img_3 => [],
 };